Datex Ohmeda Aestiva 3000
Datex Ohmeda · Model Aestiva 3000
Anesthesia Machine with 7900 SmartVent Ventilator The Aestiva 3000's Smart Vent ventilator has both pressure and volume control modes, which makes it useful for a broader range of patients than most anesthesia machines can accommodate, including neonates, trauma and compromised patients, as well as routine cases. SmartVent's gas compensation system automatically adjusts for changes in fresh gas flows, small system leaks, changing lung compliance or compression losses. This innovative system makes the Aestiva 3000 especially well-suited to low-flow anesthesia, which helps reduce costs because less anesthetic agent is used. The Aestiva 3000 provides superior ventilation and is extremely easy to use. Its compact, ergonomically superior design makes it comfortable to work with and easy to configure within any operating room setting. The new machine can be configured to meet individual needs. For example, clinicians can choose from a two-, three- or four-gas configuration with two or three in-line vaporizers. The machine's open architecture also enables clinicians to use existing monitors and accessories. Other features of the Aestiva 3000 include reduced planned maintenance requirements. In addition, a built-in breathing circuit reduces the number of tubes and cables while protecting the circuit's components from being damaged or becoming disconnected.
Key tips
- ·A failed daily leak test takes the machine out of service immediately - there is no acceptable workaround.
- ·Never run an agent-specific vaporizer with the wrong agent, even briefly, during testing.
- ·CO2-absorbent exhaustion mimics several unrelated fault symptoms - rule it out early.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Vaporizer calibration drift
HighSymptoms: Delivered agent concentration off, low/high agent alarm.
Root cause: Worn bellows or O-ring; agent contamination.
O2 failure / pipeline alarm
HighSymptoms: O2 low-pressure alarm, inability to ventilate.
Root cause: Pipeline disconnect or failed O2 flush valve.
Breathing circuit leak
HighSymptoms: Low minute volume, volume loss, leak alarm.
Root cause: Loose connections, torn bellows, cracked hose.
Scavenging system fault
MediumSymptoms: High scavenger pressure, agent smell in OR.
Root cause: Obstructed scavenger line or failed regulator.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Scavenger interface & hose
Class Periodic replacementRel. cost $$R&R Fairly easy
O2 pressure regulator
Class Periodic replacementRel. cost $$$R&R Difficult
Vaporizer (agent-specific)
Requires periodic calibration.
Class Major service partRel. cost $$$$R&R Expert-level
Breathing circuit / bellows
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Scavenger interface & hose | Periodic replacement | $$ | Fairly easy |
| O2 pressure regulator | Periodic replacement | $$$ | Difficult |
| Vaporizer (agent-specific) Requires periodic calibration. | Major service part | $$$$ | Expert-level |
| Breathing circuit / bellows | Periodic replacement | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily pre-anesthesia machine check: leak test, O2 sensor calibration, per facility protocol
- ·Scheduled vaporizer calibration and agent-specific service
- ·Absorber / CO2 canister replacement
- ·Breathing circuit and hose inspection
- ·Annual full PM and electrical safety test
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Vaporizer calibration drift
- Confirm the presentation - typically delivered agent concentration off, low/high agent alarm - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: worn bellows or O-ring; agent contamination.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the vaporizer (agent-specific) per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Breathing circuit leak
- Confirm the presentation - typically low minute volume, volume loss, leak alarm - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: loose connections, torn bellows, cracked hose.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the breathing circuit / bellows per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure / endoscopy suites requiring sedation
- Obstetric delivery rooms
Documents & Manuals
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